So, some wild guessing…

Andy, I address the question about the gate in your post in the Contagious Q&A topic.

Regarding the Prawatt, some more information has come forth, but really only on the origin side of things. In the anthology Robot Uprisings, Scott has a story called “Complex God” which is essentially the origin story of the Prawatt as a race. Contextually, it takes place in 2015, so that fits right in.

On a separate note, the forums at ScottSigler.com are more or less being abandoned. As a substitute, a bunch of junkies have started a new, separate forums site. I encourage you to join over there and hopefully we can get the forums jumping once again.

Well, the Prawatt were created by Petra to clean up the radiation in Detroit post nuke, meaning the gate was closed, unless there was another gate.
I don’t remember reading anywhere where that happened yet.

Maybe they figured it out on their own? I assume Scott has a plan for getting them off earth.

A bigger question is, if gate technology exists, why isn’t it being used in the GFL era anywhere?

So Petra Prawatt in Ancestor is obviously the origin of the Prawatt (I noticed her in the first read-through of Ancestor, but didn’t put 2+2 together, but the purple hair made her stick in my mind).

The All-Pro describes both the origin and near-genocide of the Prawatt on Earth taking place around 2015/2016.

The last chapter of Contagious talks about a five-year time skip (a line something like “over the next five years”), so that puts Pandemic right in that time frame.

I can’t remember if there were any Triangles left outside of the immediate Detroit kill zone, but if there were, the wilder part of the guess is that the gate operates in both directions, and that’s how the Prawatt escape Earth.

However, I do think there has to be some alien intervention to assist them in getting off Earth – it’s not we’re launching things into space every day, and even if they were to hijack a satellite or such, they’d be limited in how far and how fast they could move (even if they were able to improve on Voyager’s schedule leaving the solar system, it’s still nothing compared to punch drive).